摘要:
Epoxy bonding between an IC chip and a chip carrier is strengthened by creating substantially rougher oxidized surfaces within substantially smooth gold surfaces of a die paddle portion of the chip carrier.
摘要:
An integrated circuit chip carrier assembly, comprising a semiconductor device (10) having interconnection pads (14) disposed on an active surface (12) of the device. The device (10) is attached by means of electrically conducting bumps (26) to a circuitry pattern (18) on a first side of a circuit carrying substrate (16). The substrate is typically an aramid reinforced organic resin, such as epoxy. The circuitry (18, 20) is electrically connected by conductive through-holes (22) to an array of solder pads on a second side of the substrate. Some or all of the through-holes (22) are covered by the device. The overall length and width of the circuit carrying substrate (16) are each a maximum of about 0.15 inches greater than the equivalent dimensions of the device (10), creating a carrier that is only slightly larger than the semiconductor device itself.
摘要:
A structural component for use in building construction including a first and second support material member, an insulating material, and a first securing member. The first support material member may have a first length, a first side, and an opposing second side. The second support material member may have a second length, a first side, and an opposing second side. The second support material member may oppose the first support material member. The insulating material may be disposed between the first support material member and the second support material member. The first securing member may be adapted to secure the first support material member to the second support material member.
摘要:
A shielded semiconductor package and a method for manufacturing the package is provided. The shielded semiconductor package comprises a metal coating (19) applied over an encapsulated semiconductor device (16). The device may be transfer molded or encapsulated by glob top technology. The metal coating (19) serves as a barrier to the transmission of electromagnetic or radio frequency energy, thereby shielding the semiconductor device (16). The shielded semiconductor package is manufactured by providing a metallization pattern (12 and 14) on a substrate (10) and mechanically attaching and electrically interconnecting a semiconductor device (16) to the metallization pattern. A resin (18) is transfer molded about the semiconductor device, the electrical interconnections (17), and the metallization pattern so as to form an assembly, and a metal coating (19) is applied via vacuum deposition or plating to interconnect with a portion of the metallization pattern.
摘要:
A structural component for use in building construction including a first support material member, a second support material member, an insulating material, and a first securing member. The first support material member may have a first length and a first edge. The second support material member may have a second length and a second edge and may oppose the first support material member. The insulating material may be disposed between the first support material member and the second support material member. The first securing member may be adapted to contact the first edge and the second edge.
摘要:
An improved data inserter for inserting data into selected lines, including the vertical blanking interval, of a television or video signal. The data inserter includes a parallel interface for receiving data and a digital signal processor (DSP) for controlling the insertion of that data. A dual port memory structure is used to temporarily store data to be inserted. The dual port memory is associated with and connected to an autobuffer unit. Each video signal received by the inserter is provided to a switch which is also coupled to the autobuffer unit so that the switch may receive data stored in the dual port memory devices. When a selected line in a given video signal is detected by the DSP, it triggers the respective autobuffer unit which, in turn, transfers the data out of the dual port memory to the respective switch for insertion into the selected line of the video signal.
摘要:
A system for generating revenue includes a fee collection station. The fee collection station may include a controller and a fee receiver in communication with the controller for receiving a predetermined fee from a plurality of users. The fee receiver may also receive a predetermined participation fee from the plurality of users that selectively participate in a game. The fee collection station may also comprise an indicator in communication with the controller and adjacent to the fee receiver for indicating to participating users one of a winning indication or a losing indication. The participating users that receive the winning indication may receive a predetermined reward.
摘要:
A system for transferring a vessel between a first body of water having a first water level and a second body of water having a second water level includes a barrier separating the first body of water from the second body of water. The system also includes a transfer structure adjacent the barrier for receiving the vessel to be transferred between the first and second bodies of water, and a transfer apparatus adjacent the barrier for moving the transfer structure between a first position and a second position. The upper portion of the barrier includes a barrier door that is movable between an opened position when the transfer structure is in the second position to allow the vessel to move into and out of the transfer structure, and a closed position when the transfer structure is in the first position.
摘要:
A mounting pad arrangement (FIG. 5) improves reliability of placement of a surface mount component. A first pad array is disposed throughout an area on the surface (308) of a substrate (202), the area having four outside corners. The first pad array includes contact pads (502) arranged in a first linear grid pattern, and eight aligning pads (504,506,510,514,518), larger than the contact pads (502). Two aligning pads (504,506,510,514,518) are near each of the four outside corners. Each aligning pad (504,506,510,514,518) is positioned off center with respect to the first linear grid pattern such that a tangential line (608,610,612,614) can be drawn between an innermost point of the aligning pad (504,506,510,514,518) and corresponding innermost points of the contact pads (502) that are collinear on the first linear grid pattern. A second pad array (406) is disposed on the surface mount component and arranged in a second linear grid pattern that aligns with the first linear grid pattern. Eight pads of the second pad array (406) also align with points of intersection of the first linear grid pattern that fall within each of the eight aligning pads (504,506,510,514,518). Each pad of the second pad array (406) is equal in size to any other pad of the second pad array (406). Solder (312) is disposed between and contacting each pad of the first and second pad arrays.
摘要:
A structural component for use in building construction including a first support material member, a second support material member, an insulating material, and a first securing member. The first support material member may have a first length and a first edge. The second support material member may have a second length and a second edge and may oppose the first support material member. The insulating material may be disposed between the first support material member and the second support material member. The first securing member may be adapted to contact the first edge and the second edge.